{
  "annotation_id": "ac919e15-3f42-4fcd-9871-51a786228d8d",
  "date_created": "2026-03-02T18:02:27.558000Z",
  "date_modified": "2026-03-02T18:02:27.558000Z",
  "file_hash": "7dd18c32bd6b90c36690ed31a6ae8351fb9940e0749f4e435463f8ca9e98efef",
  "private": false,
  "record": {
    "abstract": "We have investigated the polarization entanglement between photon pairs\ngenerated from a biexciton in a CuCl single crystal via resonant hyper\nparametric scattering. The pulses of a high repetition pump are seen to provide\nimproved statistical accuracy and the ability to test Bell\u0027s inequality. Our\nresults clearly violate the inequality and thus manifest the quantum\nentanglement and nonlocality of the photon pairs. We also analyzed the quantum\nstate of our photon pairs using quantum state tomography.",
    "arxiv_id": "quant-ph/0607139",
    "authors": [
      "Goro Oohata",
      "Ryosuke Shimizu",
      "Keiichi Edamatsu"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.98.140503",
    "title": "Photon polarization entanglement induced by biexciton: experimental   evidence for violation of Bell\u0027s inequality",
    "url": "https://arxiv.org/abs/quant-ph/0607139"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "544f44b6-3db7-4d55-9fa3-13543ab13634",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}